On the norm of products of polynomials on ultraproducts of Banach spaces

The purpose of this article is to study the problem of finding sharp lower bounds for the norm of the product of polynomials in the ultraproducts of Banach spaces (Xi)U. We show that, under certain hypotheses, there is a strong relation between this problem and the same problem for the spaces Xi.

Detalles Bibliográficos
Autor: Rodríguez, Jorge Tomás
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/39695
Acceso en línea:http://hdl.handle.net/11336/39695
Access Level:acceso abierto
Palabra clave:Polynomials
Banach Spaces
Norm Inequalities
Ultraproducts
https://purl.org/becyt/ford/1.1
https://purl.org/becyt/ford/1
Descripción
Sumario:The purpose of this article is to study the problem of finding sharp lower bounds for the norm of the product of polynomials in the ultraproducts of Banach spaces (Xi)U. We show that, under certain hypotheses, there is a strong relation between this problem and the same problem for the spaces Xi.